1101001001202 has 12 divisors (see below), whose sum is σ = 2385502169310. Its totient is φ = 367000333728.

The previous prime is 1101001001179. The next prime is 1101001001239. The reversal of 1101001001202 is 2021001001011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1071144271521 + 29856729681 = 1034961^2 + 172791^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30583361127 + ... + 30583361162.

Almost surely, 2^{1101001001202} is an apocalyptic number.

1101001001202 is an abundant number, since it is smaller than the sum of its proper divisors (1284501168108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101001001202 is a wasteful number, since it uses less digits than its factorization.

1101001001202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61166722297 (or 61166722294 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1101001001202 its reverse (2021001001011), we get a palindrome (3122002002213).

The spelling of 1101001001202 in words is "one trillion, one hundred one billion, one million, one thousand, two hundred two".